Stepwise separation and recovery of molybdenum, vanadium, and nickel from spent hydrogenation catalyst

Chen, Rongrong; Feng, Chunlv; Tan, Jun; Zhang, Cheng; Yuan, Songliu; Liu, Mei; Hu, Huiping; Li, Qinxiang; Hu, Jiugang

doi:10.1016/j.hydromet.2022.105910

Cited by 37 publications

(5 citation statements)

References 27 publications

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“…Previous studies on the recovery and separation of V, Ni, and Mo focused on inorganic acid/base leaching–solvent extraction. , During the process of acid leaching, it is difficult for inorganic acids to separate Ni and Fe from V and Mo. Therefore, oxalic acid leaching is the pivotal first step in the treatment of composite waste containing V, Mo, and Ni.…”

Section: Resultsmentioning

confidence: 99%

Recovery and Separation of Vanadium, Nickel, and Molybdenum from the Industrial Waste of a Petroleum Refinery by a Complexation Method

Tan

Fan

Zheng

et al. 2023

ACS Sustainable Chem. Eng.

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Based on the characteristics of complexation reactions, a novel method for the recovery and separation of vanadium (V), molybdenum (Mo), and nickel (Ni) is proposed. This approach mainly utilizes oxalic acid and hexamethylenetetramine (HMT) as complexing agents to recover and separate V, Mo, and Ni from the roasting slag of the byproduct carbon black from petroleum refineries, which includes the above elements plus iron and calcium. According to the differences in the solubilities of the metallic oxalic acid complexes, V and Mo were selectively leached with efficiencies of 95.49% and 97.74%, respectively, while Ni, iron, and calcium remained in the residue. After decomplexing the V and Mo complexes in the leachate by adding sulfuric acid, the oxalic acid was recycled. Then, the solution containing V and Mo was treated with HMT, and 93.19% of the Mo was complexed and precipitated. Finally, the precipitated Mo complex was dissociated by the addition of calcium oxide to separate and recover Mo and HMT with a Mo recovery efficiency of 95.72%, and HMT was regenerated and used in the following cycles. As a result, the method proposed in this study is an efficient and sustainable way to recover and separate V, Mo, and Ni from the industrial waste of petroleum refineries.

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Section: Resultsmentioning

confidence: 99%

Recovery and Separation of Vanadium, Nickel, and Molybdenum from the Industrial Waste of a Petroleum Refinery by a Complexation Method

Tan

Fan

Zheng

et al. 2023

ACS Sustainable Chem. Eng.

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“…So, the excessive Na 2 S 2 O 8 makes the pH decrease to 2. In the pH range of 1.5-2, the high concentration of VO 2+ in the solution is converted to V 2 O 5 and precipitates out of the solution [26], which leads to a decrease in the leaching efficiency of vanadium. The decrease in the leaching efficiency of aluminum after the concentration of Na 2 S 2 O 8 exceeded 0.5 M was also related to this effect, because the deposition of V 2 O 5 influences the further dissolution of aluminum.…”

Section: Oxidative Leaching With Sodium Persulfatementioning

confidence: 99%

Extraction of Vanadium from the Spent Residuum Catalysts by Fenton-like Reaction Followed with Alkaline Leaching

Zhao

Shen

et al. 2023

Processes

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Spent residuum hydroprocessing (RHDP) catalysts are hazardous waste bearing high-content vanadium and large amounts of oily pollutants. In this paper, a process featuring a Fenton-like reaction and alkaline leaching was proposed to recover vanadium from spent RHDP catalysts. In the first step, a Fenton-like reaction using peroxide was conducted to degrade the oily pollutants and make the surface of the spent catalyst becomes hydrophilic. In the second step, the vanadium-containing deposit on the catalyst was leached with 0.5 M Na2S2O8 at 70 °C for transforming vanadium sulfide to oxide in 5 h. In the last step, alkaline leaching was employed to dissolve vanadium from the oxidizing residue at 80 °C for 1 h. It was found that the accumulated leaching efficiency of vanadium can reach up to 90.92%, and only a small part of aluminum and sulfur was dissolved. These results indicated that this combined process can extract vanadium selectively from spent residuum hydroprocessing catalysts under a relatively mild condition.

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“…Different processes are used to diminish the quantity of metals in crude oil: adsorption, electrolysis, acid attack, or solvent extraction . The newest technologies use zeolites or other nanoadsorbents in many industrial implementations, such as water softening, heterogeneous catalysis, and environmental remediation, because these nanomaterials possess large surface areas and remarkable catalytic and ionic exchange properties; thus, they could be used for the removal of these metal ions from waste waters, crude oil, and catalysts for the catalytic cracking of heavy oils. , …”

Section: Introductionmentioning

confidence: 99%

“…Vanadium is used in metallurgy, ceramics, and batteries and a significant increase in the world’s vanadium needs is projected; thus, important initiatives have been proposed to recover vanadium from different wastes. One proposal is to recover vanadium from used catalysts, which have been poisoned after processing with crude oil with a high vanadium content; this proposal shows an interesting perspective. − Venezuela has the largest reserve of heavy crude oil (270 MB), with a high vanadium content (more than 500 mg/L); therefore, developing methodologies to recover vanadium compounds in crude oil before the catalytic processes has a double interest: to recover the vanadium to be used in other processes and to avoid poisoning by the catalysts.…”

Section: Introductionmentioning

confidence: 99%

Biogenic RH-SiO₂ Nanoparticles for Vanadium Removal from Asphaltenes via GPC-ICP MS and spICP MS Analysis

Castillo,

Gonzalez,

Menta

et al. 2023

Energy Fuels

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Stepwise separation and recovery of molybdenum, vanadium, and nickel from spent hydrogenation catalyst

Cited by 37 publications

References 27 publications

Recovery and Separation of Vanadium, Nickel, and Molybdenum from the Industrial Waste of a Petroleum Refinery by a Complexation Method

Recovery and Separation of Vanadium, Nickel, and Molybdenum from the Industrial Waste of a Petroleum Refinery by a Complexation Method

Extraction of Vanadium from the Spent Residuum Catalysts by Fenton-like Reaction Followed with Alkaline Leaching

Biogenic RH-SiO₂ Nanoparticles for Vanadium Removal from Asphaltenes via GPC-ICP MS and spICP MS Analysis

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Stepwise separation and recovery of molybdenum, vanadium, and nickel from spent hydrogenation catalyst

Cited by 37 publications

References 27 publications

Recovery and Separation of Vanadium, Nickel, and Molybdenum from the Industrial Waste of a Petroleum Refinery by a Complexation Method

Recovery and Separation of Vanadium, Nickel, and Molybdenum from the Industrial Waste of a Petroleum Refinery by a Complexation Method

Extraction of Vanadium from the Spent Residuum Catalysts by Fenton-like Reaction Followed with Alkaline Leaching

Biogenic RH-SiO2 Nanoparticles for Vanadium Removal from Asphaltenes via GPC-ICP MS and spICP MS Analysis

Contact Info

Product

Resources

About

Biogenic RH-SiO₂ Nanoparticles for Vanadium Removal from Asphaltenes via GPC-ICP MS and spICP MS Analysis